Exploration of the brain from its basal aspect

Longitudinal fibers within septum pellucidum

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Image #7-6

Exploration of the brain from its basal aspect

Longitudinal fibers within septum pellucidum

The body and crus of the fornix have been removed from the specimen and the column of the fornix (12) turned out from its normal position. A system of fibers is exposed which courses longitudinally above the fornix in the septum pellucidum. By dissecting the septum pellucidum (8) anteriorly these can be traced into the region of the lamina terminalis. Posteriorly the fibers appear to blend with the occipital radiation of the corpus callosum. No connection with the hippocampal structures could be found.